Birefringence-balanced polarimetric optical fiber sensor for high-temperature measurement.
Birefringence-balanced polarimetric optical fiber sensor for high-temperature measurement.
复制标题
用于高温测量的双折射平衡偏振光纤传感器。
DOI：
10.1364/ol.17.001391
复制
发表时间：
1992
期刊：
影响因子：
3.6
通讯作者：
R. Claus
中科院分区：
文献类型：
--
作者：
A. Wang;G. Wang;K. Murphy;R. Claus
提出并实现了一种双折射偏振多模光纤温度传感器。两个单晶蓝宝石棒被纳入传感器头。它们以这样的方式首尾相连，即第一杆的慢轴与第二杆的快轴对齐，第二杆被称为参考杆。由于两个棒的长度被选择为几乎相同，第一棒的原始双折射被第二棒的双折射平衡。发光二极管用作光源。该传感器已通过实验证明可用于高达1500°C的高温测量。已获得5°C的灵敏度。
A birefringence-balanced polarimetric multimode fiber temperature sensor is proposed and demonstrated. Two single-crystal sapphire rods are incorporated into the sensor head. They are connected end to end in such a way that the slow axis of the first rod is aligned with the fast axis of the second rod, referred to as the referencing rod. Since the lengths of the two rods are chosen to be almost the same, the original birefringence of the first rod is balanced by that of the second rod. A light-emitting diode serves as the light source. This sensor has been experimentally demonstrated for high-temperature measurements as high as 1500°C. A sensitivity of 5°C has been obtained.